Item:Heroic Otto's Irresistible Box
- In November 12-21, 2013
- In May 23 - June 1, 2014
Heroic Otto's Irresistible Box - 4,995 
A jam-packed bundle that contains the following:
- 1 Stone of Heroic Experience (2 million XP)
- 5 Superior Experience Elixirs
- 5 Major Slayer Count Boosts
- 5 Huge Jewels of Fortune
- 5 Siberys Spirit Cakes
- 3 Greater Siberys Spirit Cakes
- 1 Complete Reincarnation Timer Reset
- Your choice of either a Cyan Gelatinous Cube Creature Companion or 65 Astral Shards.
Stone of Experience Information:
- Grants two million XP to the user
- (Enough for most characters to reach level 20.)
- (Enough to take 3rd life+ characters from level 1 to 14 or from level 14 to 20.)
- Can be used at any time during the heroic level range (Levels 1 to 19).
- The XP grant can be increased by using Experience Elixirs or acquiring other XP-boosting effects before using the stone.
- XP granted caps at heroic level cap (the start of Level 20)
- Maximum Level for Usage: 19
- Only one Stone of Heroic XP can be used per life. (All types of reincarnation reset this except for Lesser Reincarnation.)
NOTE: Otto's box and the Stone of Experience inside are tradable. The other items inside are not.